Seiko Cal. 7161 - 136

The Seiko 7161-136 represents an important milestone in Seiko's 1970 lineup. It features a Green dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-653e118d5e74]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1970

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